Fairly small creatures resembling triceratops, often found in groups. Reznors are very easily agitated and tend to attack almost anyone they see infringing on their 'territory'. They are capable of breathing fire, and in fact one of their main attacks consists of shooting fireballs at their targets. They are surprisingly resilient for their size and can take a fair pounding before going down. Although some charge directly at their targets with their horns, others prefer to remain stationary. They tend to move to high ground during a battle, making it difficult to actually hurt them. Despite their heavy size, they are excellent jumpers. Their roars are quite piercing, and more powerful ones can even stun adventurers and damage the environment around them. Despite all this, however, they aren't that difficult to defeat; no particular strategy is required besides 'hit them'. They do have a weakness if needed; Striking them from underneath them will cause them to fall over.

Plains/Grassy/Savannah

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Amazee Dayzee

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If Crazee Dayzees are allowed to run loose, they will appoint a new ruler over the garden. This new ruler magically becomes golden, and a lot stronger and difficult to kill. Amazy Dayzees are the reason a Dayzee infestation should be dealt with immediately. Their song deals major damage to anyone who can hear, as well as putting them in a coma-like state. It is said they are made of pure gold, and the experience of defeating one is surely invaluable, but with their power they are very risky. Gardeners who neglect their gardens in the hopes of attracting and catching one quickly learn that Amazy Dayzees cannot be caught. The gardeners also end up dead.

Desert

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Swamp

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Forest/Jungle

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Water/Beach

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Kraken

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A cross between a giant squid and a dragon lurks beneath the waves. It eats ships and whales, then excretes toxic sludge used to trap other animals. It can't be killed with physical attacks, but if one were to use explosive magix, its tentacles can be permanently disfigured, and it will shy away. It's rather timid when it believes something poses a threat. The only reason it's so threatening is because it's at the top of the food chain. Please don't organize a team of OP mages to start hunting it for sport. It's an endangered species.

Crag/Mountain

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Cave/Underground

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Lava/Volcano

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Snow

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Ruins/Abandoned

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Other

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Unique Bosses

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Dungeon Bosses

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Regirock

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Regice

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Registeel

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Nondungeon Bosses

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Shade Bosses

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Other

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Grey DemonsFive extremely powerful archdemons whose names have been lost to history, they possessed powers that reflected the composition of the world and resided in a realm apart from the prime plane. Only a few scholars know of them and the designs they had on this world long ago. Since that era, they have each been sealed or have vanished.

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Pazhou, Grey Demon of LifeA Grey Demon who controlled the force of life, he took on the self-imposed role of an 'early reaper', wiping out entire towns with his deadly touch. With each soul absorbed, he grew stronger, until a legendary warrior defeated him and sealed him away.

Sram, Grey Demon of MatterA Grey Demon who could freely manipulate the matter he came into contact with, he sought to consume the planet, and lives on in the myths of the 'World-Eater'. He was infamous for his aggression, as well as his cruelty, when the myths were alive.

Ketoule, Grey Demon of EnergyA Grey Demon that could control nearly every form of energy, she often took on the form of a wrathful goddess of tremors. Her tyranny was shortlived, as after she was defeated by a band of warriors, she vanished completely.

Chrono, Grey Demon of TimeThe most powerful Grey Demon, he was said to have control over the fabric of time, and is believed to have rewritten history to suit his ends. A very old myth only told in the far north claims that he was the only Grey Demon to not hold hostilities towards the prime world, but was sealed regardless, due to his status as a Grey Demon.

Fluid, Grey Demon of DarkA Grey Demon, the details of whom have been forgotten entirely. The only mention of its name is on a small urn resting in ARK's Terian artifact repository.